No problem, we've got 8141 and 1649 to multiply
8141 × 1649 = 1649 × (8141)
+ 1649 × 1 what gives us 1649
+ 1649 × 40 that is equal 65960
+ 1649 × 100 that results in 164900
+ 1649 × 8000 giving us 13192000

= 13424509
